Home / 399,981,896.24-599,550,791.63-215,699,218.25

Finding the Fourth Proportional to 399,981,896.24, 599,550,791.63 and 215,699,218.25

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Solution

The fourth proportional to 399,981,896.24, 599,550,791.63 and 215,699,218.25 is: 323,321,225.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,981,896.24 : 599,550,791.63 = 215,699,218.25 : x
  2. Step 2: Convert to fraction form
    399,981,896.24/599,550,791.63 = 215,699,218.25/x
  3. Step 3: Cross multiply
    399,981,896.24x = 599,550,791.63 × 215,699,218.25
  4. Step 4: Simplify right side
    399,981,896.24x = 129,322,637,051,683,392
  5. Step 5: Solve for x
    x = 129,322,637,051,683,392/399,981,896.24
  6. Step 6: Final answer
    x = 323,321,225.96

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.